• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of nucleotide sequence-specific in situ detection technology for methylated DNA

Research Project

Project/Area Number 21K19354
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 48:Biomedical structure and function and related fields
Research InstitutionEhime University

Principal Investigator

Kitazawa Sohei  愛媛大学, 医学系研究科, 教授 (90186239)

Co-Investigator(Kenkyū-buntansha) 北澤 理子  愛媛大学, 医学部附属病院, 准教授 (00273780)
原口 竜摩  愛媛大学, 医学系研究科, 准教授 (00423690)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsメチル化シトシン / in situ hybridization / 組織細胞化学 / 病理診断 / 再生医療 / Padlock probe / PCR / エピジェネティクス / DNAメチル化 / 組織化学 / 破骨細胞 / 精子形成 / 悪性腫瘍
Outline of Research at the Start

本申請課題においては、DNAメチル化を中心としたエピジェネティクス制御機構を形態学的研究へと広く展開させる可能性を持つ、きわめて独創的な実験方法の開発を目指すものである。申請者らは、メチル化シトシンの検出には、メチル化シトシンと相補的な位置のプローブとなるDNAの中のグアニンに標識を行い、選択的かつ強固に錯体形成したプローブを常温でpadlock probe伸展反応によるDNA増幅を行い、組織切片上で形態を温存しつつ、DNA伸展中に標式核酸をとりこませるという独創的で斬新な方法の開発を目指しており、その成果は直ちに発生学、再生医学、加齢研究、癌研究へと広領域に分野横断的な応用展開が期待できる。

Outline of Final Research Achievements

While research on the application of iPS cells to regenerative medicine and aging research is currently showing rapid development, the details of gene re-programming phenomena and aging remain in a state of exploration. Epigenetics analysis centered on methylated cytosine has shown the limitation of using only biochemical methods for heterogeneous materials including normal structures such as non-pathological lesions and blood vessels. This grant has enabled the Principal Investigator and his colleagues to explore a new research field of “morphology-based epigenetics research” by using ICON probes and rolling circle amplification method to identify land and new methylation in specific sequences while preserving tissue cell structure. The research grant has enabled us to promote the development of a new research field of “morphology-based epigenetics.

Academic Significance and Societal Importance of the Research Achievements

本成果は、これまでの組織化学的手法では、解析不可能であった遺伝子の特定部位のメチル化シトシンの有無を組織切片上で同定する事を可能とした。病理組織学的な診断手法の確立、再生過程におけるエピジェネティクス制御機構のre-programming現象の詳細、発生過程における遺伝子刷り込み現象や組織・器官形成の多様性とメチル化との関連、さらには癌をはじめとする種々の病理病態におけるエピジェネティクス制御機構の破綻、加齢におけるミトコンドリアのDNAメチル化についての解析など、広い範囲の研究、診断、臨床医学に対して、分野横断的に展開させることが可能であり、その研究成果の適応範囲はきわめて広範である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (13 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 13 results,  Open Access: 9 results) Presentation (6 results)

  • [Journal Article] Reduced chemokine <scp>C‐C</scp> motif ligand 1 expression may negatively regulate colorectal cancer progression at liver metastatic sites2024

    • Author(s)
      Iwata Miku、Haraguchi Ryuma、Kitazawa Riko、Ito Chihiro、Ogawa Kohei、Takada Yasutsugu、Kitazawa Sohei
    • Journal Title

      Journal of Cellular and Molecular Medicine

      Volume: 28 Issue: 7

    • DOI

      10.1111/jcmm.18193

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Histone Modification in Histochemistry and Cytochemistry2023

    • Author(s)
      Kitazawa R, Haraguchi R, Kitazawa S.
    • Journal Title

      ACTA HISTOCHEMICA ET CYTOCHEMICA

      Volume: 56 Issue: 3 Pages: 41-47

    • DOI

      10.1267/ahc.23-00014

    • ISSN
      0044-5991, 1347-5800
    • Year and Date
      2023-06-27
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glomangiopericytoma with<i>CTNNB1</i>mutation2023

    • Author(s)
      Iwata Shinji、Kitazawa Riko、Kitazawa Sohei、Hato Naohito
    • Journal Title

      BMJ Case Reports

      Volume: 16 Issue: 9 Pages: e256787-e256787

    • DOI

      10.1136/bcr-2023-256787

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Demethylation in Promoter Region of Severely Damaged Hepatocytes Enhances Chemokine Receptor CXCR4 Gene Expression2023

    • Author(s)
      Ito C, Haraguchi R, Ogawa K, Iwata M, Kitazawa R, Takada Y, Kitazawa S.
    • Journal Title

      Histochem Cell Biol

      Volume: 160 Issue: 5 Pages: 407-4018

    • DOI

      10.1007/s00418-023-02229-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mucinous cystadenoma of the pancreas associated with pancreatic pseudocyst2023

    • Author(s)
      Horiuchi Atsushi、Akehi Shun、Abe Yousuke、Ichikawa Nanako、Kawaharada Sakura、Kitazawa Sohei、Kitazawa Riko
    • Journal Title

      Journal of Surgical Case Reports

      Volume: 2023 Issue: 2 Pages: 1-4

    • DOI

      10.1093/jscr/rjad026

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acute myocardial infarction caused by coronary mucormycotic embolism.2023

    • Author(s)
      Kitazawa S, Kitazawa R
    • Journal Title

      IDCases

      Volume: 31 Pages: e01686-e01686

    • DOI

      10.1016/j.idcr.2023.e01686

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Histochemistry, Cytochemistry and Epigenetics2022

    • Author(s)
      Kitazawa S, Ohno T, Haraguchi R, Kitazawa R
    • Journal Title

      ACTA HISTOCHEMICA ET CYTOCHEMICA

      Volume: 55 Issue: 1 Pages: 1-7

    • DOI

      10.1267/ahc.21-00095

    • NAID

      130008164508

    • ISSN
      0044-5991, 1347-5800
    • Year and Date
      2022-02-26
    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ETS1 governs pathological tissue-remodeling programs in disease-associated fibroblasts2022

    • Author(s)
      Yan Minglu、Komatsu Noriko、Muro Ryunosuke、Huynh Nam Cong-Nhat、Kitazawa Riko、Kitazawa Sohei、Pluemsakunthai Warunee、Mitsui Yuichi、Satoh Takashi、Okamura Tadashi、Nitta Takeshi、Im Sin-Hyeog、Kim Chan Johng、Kollias George、Tanaka Sakae、Okamoto Kazuo、Tsukasaki Masayuki、Takayanagi Hiroshi
    • Journal Title

      Nature Immunology

      Volume: 23 Issue: 9 Pages: 1330-1341

    • DOI

      10.1038/s41590-022-01285-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] In situ sequence-specific visualization of single methylated cytosine on tissue sections using ICON probe and rolling-circle amplification2022

    • Author(s)
      Kitazawa Sohei、Haraguchi Ryuma、Takaoka Yuki、Kitazawa Riko
    • Journal Title

      Histochemistry and Cell Biology

      Volume: 159 Issue: 3 Pages: 263-273

    • DOI

      10.1007/s00418-022-02165-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] エピジェネティクスと病理 エピジェネティクス総論2022

    • Author(s)
      北澤荘平
    • Journal Title

      病理と臨床

      Volume: 40 Pages: 102-108

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 特集編集:エピジェネティクスと病理2022

    • Author(s)
      北澤荘平
    • Journal Title

      病理と臨床

      Volume: 40 Pages: 101-101

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] エピジェネティクス総論2022

    • Author(s)
      北澤荘平
    • Journal Title

      病理と臨床

      Volume: 40 Pages: 102-108

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 組織細胞化学20212021

    • Author(s)
      北澤荘平、原口竜摩、小原幸弘、鷹岡友紀、北澤理子
    • Journal Title

      組織細胞化学2021

      Volume: 41 Pages: 199-211

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 破骨細胞形成に関わる遺伝子発現調節機構とその異常(宿題報告2)2024

    • Author(s)
      北澤荘平
    • Organizer
      第113回日本病理学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] メチル化シトシンin situ 検出法の開発(ワークショップ)2024

    • Author(s)
      北澤理子
    • Organizer
      第113回日本病理学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] in vitro共培養系を用いた破骨細胞分化における腫瘍細胞の機能考察2022

    • Author(s)
      小野 真理, 北澤 理子, 原口 竜摩, 小原 幸弘, 井上 潮音, 遠香 菫, 北澤 荘平
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] エストロゲンはmRNAの半減期を短縮させることで破骨細胞分化因子RANKLを抑制する2022

    • Author(s)
      三瀬 萌絵, 原口 竜摩, 平田 佳那, 北澤 荘平, 北澤 理子
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] Wntシグナル調節分子sFRP4の腎臓老化における機能考察2022

    • Author(s)
      原口 竜摩, 小原 幸弘, 北澤 理子, 北澤 荘平
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 実験的加齢モデルにおける破骨細胞分化因子受容体RANKのプロモータ領域CpGメチル化による発現低下2022

    • Author(s)
      北澤 理子, 原口 竜摩, 谷脇 真潮, 北澤 荘平
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi